DaveinOlyWA
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Re: Nissan Tests 48-kWh LEAF

Tue Jan 20, 2015 11:34 am

TimLee wrote:Unless they changed the units on GIDS, 511 is a 42 kWh battery, not 48.
But 42 is what the rumors were mostly saying for the larger pack next generation LEAF.
need more explanation how you get to 42 kwh from 511 GIDs. if we take GIDs to be 80 wh that is 40.88 available from a pack of 43.222 kwh using same percentage as the current pack (22.7 from 24 kwh) which is logical of same cells are used.

But if we take another accepted number of 74 wh/GID. that is only 37.814 kwh available or a 39.6 kwh pack

or am I missing something? which is possible. haven't been to this thread in a long time and don't know where the 511 GIDs came from
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keydiver
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Re: Nissan Tests 48-kWh LEAF

Tue Jan 20, 2015 3:04 pm

24kWh/292 GIDs = .0821918
.0821918 X 511 GIDs = 42 kWh
That's my guess.
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KJD
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Re: Nissan Tests 48-kWh LEAF

Tue Jan 20, 2015 3:46 pm

The 511 reading was bogus. See page 2 of this thread.
Berlino wrote: I was just joking. When I take ODBII readings immediately after charging to 80%, I sometimes get amusing out-of-bounds readings from LEAF Spy, it just so happened that one of them corresponded with a 48 kWh LEAF.
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TimLee
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Re: Nissan Tests 48-kWh LEAF

Tue Jan 20, 2015 5:36 pm

keydiver wrote:24kWh/292 GIDs = .0821918
.0821918 X 511 GIDs = 42 kWh
That's my guess.
Yes, was prorated on GIDS.
Missed that it was a joke :?

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DaveinOlyWA
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Re: Nissan Tests 48-kWh LEAF

Wed Jan 21, 2015 7:19 pm

keydiver wrote:24kWh/292 GIDs = .0821918
.0821918 X 511 GIDs = 42 kWh
That's my guess.
sorry but your numbers are invalid. you are combining pack capacity with usable GIDs.

try usable pack or "kwh available" on LEAF Spy on a full charge with the 292
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
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elmobob
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Re: Nissan Tests 48-kWh LEAF

Sun Feb 22, 2015 7:39 am

I hope Nissan decides to add the ability to precondition the battery (aka bring it up to optimal battery temperature) while plugged in. In cold weather below 25F I manage only about 40 miles on a full charge before I hit LBW. Also having little or no regen in winter really sucks.

XeonPony
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Re: Nissan Tests 48-kWh LEAF

Thu Mar 05, 2015 9:23 am

elmobob wrote:I hope Nissan decides to add the ability to precondition the battery (aka bring it up to optimal battery temperature) while plugged in. In cold weather below 25F I manage only about 40 miles on a full charge before I hit LBW. Also having little or no regen in winter really sucks.
More importently a 12Kw charger! I wouldn't buy one with out a larger charger bad enough it takes 4H when cold out to charge the 24Kw pack, like hell I'll sit around 8+ waiting for it to charge!!!

Larger charger then bigger battery!
2013 SV Leaf, Level 2 charger, so far all works great! 130Km daily, 100% charge at night on 240 then trickle charge for 8H durring the day on 120v.

Level 2 charge starts at 130am environmental starts at 6am to 25c for a toasty warm defrosted car!

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EVDRIVER
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Re: Nissan Tests 48-kWh LEAF

Thu Mar 05, 2015 9:29 am

XeonPony wrote:
elmobob wrote:I hope Nissan decides to add the ability to precondition the battery (aka bring it up to optimal battery temperature) while plugged in. In cold weather below 25F I manage only about 40 miles on a full charge before I hit LBW. Also having little or no regen in winter really sucks.
More importently a 12Kw charger! I wouldn't buy one with out a larger charger bad enough it takes 4H when cold out to charge the 24Kw pack, like hell I'll sit around 8+ waiting for it to charge!!!

Larger charger then bigger battery!

That would require a 60A breaker, not so likely in most homes nor a good choice for an automake. 9kw would be the max likely and that would do a full charge in about 5 hours, same as the RAV4

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Re: Nissan Tests 48-kWh LEAF

Thu Mar 05, 2015 9:32 am

XeonPony wrote:
elmobob wrote:I hope Nissan decides to add the ability to precondition the battery (aka bring it up to optimal battery temperature) while plugged in. In cold weather below 25F I manage only about 40 miles on a full charge before I hit LBW. Also having little or no regen in winter really sucks.
More importently a 12Kw charger! I wouldn't buy one with out a larger charger bad enough it takes 4H when cold out to charge the 24Kw pack, like hell I'll sit around 8+ waiting for it to charge!!!

Larger charger then bigger battery!
Larger batteries make the charging problem easier. If you had a 10,000kWh battery, you would need a charger large enough for the average usage, not the peak daily usage.
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XeonPony
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Re: Nissan Tests 48-kWh LEAF

Thu Mar 05, 2015 9:33 am

EVDRIVER wrote:
XeonPony wrote:
elmobob wrote:I hope Nissan decides to add the ability to precondition the battery (aka bring it up to optimal battery temperature) while plugged in. In cold weather below 25F I manage only about 40 miles on a full charge before I hit LBW. Also having little or no regen in winter really sucks.
More importently a 12Kw charger! I wouldn't buy one with out a larger charger bad enough it takes 4H when cold out to charge the 24Kw pack, like hell I'll sit around 8+ waiting for it to charge!!!

Larger charger then bigger battery!

That would require a 60A breaker, not so likely in most homes nor a good choice for an automake. 9kw would be the max likely and that would do a full charge in about 5 hours, same as the RAV4
No it wouldn't

I said charger not evse.

Standard 40 amp 240 is fine in the home, time is not an issue here, it is the on road L2, here in Canada most every one is 70 to 90 amps.

A 12kw capable charger would make the current 24Kwh pack super use full. 1H top ups would give a significant range boost out on the road, and for full charges be 2 to 3 h (Factoring in balancing) with a 48KWh pack it becomes required to get any use full range extensions for the mileage most would want.

At home a standard 6Kw unit would be, well standard, as at home you tend to be, well, at home for the night making the 6kw more then adequate.

Adding to the fact I stated that the smallest L2 in Canada universally are no less then 70AMp (Average being 80 to 90A) (I'd wager it is true in the states as well) the 12Kw capable charger is perfectly logical in preceding a larger battery.
2013 SV Leaf, Level 2 charger, so far all works great! 130Km daily, 100% charge at night on 240 then trickle charge for 8H durring the day on 120v.

Level 2 charge starts at 130am environmental starts at 6am to 25c for a toasty warm defrosted car!

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